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Part Number: Am79C987
Description: The Am79C987 Hardware Implemented Management Information Base (HIMIB) device is a highly integrated ch...
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Am79C987
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DataSheet
General Description
Am79C987 General Description
The Am79C987 Hardware Implemented Management Information Base (HIMIB) device is a highly integrated chip that simplifies building fully managed multiport repeaters. The device integrates all the necessary counters, attributes, actions, and notifications specified by the Layer Management for 10 Mbyte/s Baseband Repeaters (IEEE 802.3k) standard, as well as additional features and enhancements, including functions specific to 10BASE-T repeaters.
The HIMIB chip is designed to be used in conjunction with AMD's Integrated Multiport Repeater Plus (IMR+) device. When connected to an IMR+ (Am79C981) device, the HIMIB chip provides complete repeater and per-port statistics on demand from an 8-bit parallel interface. No external processor is required to keep track of attributes locally, as full 32-bit counters are provided.
The HIMIB device implements a simple 8-bit microprocessor interface, allowing multiple HIMIB devices to be used in a system. No additional logic is required for interfacing the HIMIB device to the IMR+ device.
The HIMIB chip is packaged in a 28-pin plastic leaded chip carrier (PLCC). The device is fabricated in CMOS technology and requires a single +5 V supply.
Am79C987 Maximum Ratings
Storage Temperature . . . . . . . . . .65 to +150
Ambient Temperature
Under Bias. . . . . . . . . . . . . . . . . . . . . . 0 to +70
Supply Voltage . . . . . . . . . . . . . . .0.3 V to +6.0 V
Ambient Temperature
Under Bias. . . . . . . . . . . . . . . . . . . . . . 0 to +70
Supply Voltage . . . . . . . . . . . . . . .0.3 V to +6.0 V
Am79C987 Connection Diagram
AM79C987
PDF/DataSheet Download
- Datasheet: AM79C987
- File Size: 173414 KB
- Manufacturer: AMD [Advanced Micro Devices]
- Click here to Download
- ·AM7
- Optoelectronic
- 103780 KB
- ·AM70PDL127BDH85I
- SPANSION
- Stacked Multi-Chip Package (MCP/XIP) Flash Memory, Data storage MirrorBit Flash, and pSRAM (XIP)
- 938226 KB
- ·AM70PDL127BDH85IT
- SPANSION
- 2 x 64 Megabit (8 M x 16-Bit) CMOS 3.0 Volt-Only Page Mode Flash Memory Data Storage 128 Megabit (8 M x 16-Bit) CMOS
- 940771 KB
- ·AM70PDL127CDH66IS
- SPANSION
- Stacked Multi-Chip Package (MCP/XIP) Flash Memory, Data storage MirrorBit Flash, and pSRAM (XIP)
- 867190 KB
- ·AM70PDL127CDH85IS
- SPANSION
- Stacked Multi-Chip Package (MCP/XIP) Flash Memory, Data storage MirrorBit Flash, and pSRAM (XIP)
- 867190 KB
- ·AM70PDL127CDH85IT
- SPANSION
- Stacked Multi-Chip Package (MCP/XIP) Flash Memory, Data storage MirrorBit Flash, and pSRAM (XIP)
- 867190 KB
- ·AM70PDL129BDH66I
- SPANSION
- Stacked Multi-Chip Package (MCP/XIP) Flash Memory, Data storage MirrorBit Flash, and pSRAM (XIP)
- 938226 KB
- ·AM70PDL129BDH66IT
- SPANSION
- 2 x 64 Megabit (8 M x 16-Bit) CMOS 3.0 Volt-Only Page Mode Flash Memory Data Storage 128 Megabit (8 M x 16-Bit) CMOS
- 940771 KB
Am79C987 Relative Products
Am79C985
The enhanced Integrated Multiport Repeater Plus (eIMR+) device is a VLSI integrated circuit that provides a system-level solution to designing managed multiport repeaters. Am79C985 integrates the repeater functions specified in Section 9 of the IEEE 802.3 st...
Am79C984A
Am79C983A
The Am79C983A Integrated Multiport Repeater 2 (IMR2) chip is a VLSI integrated circuit that provides a system-level solution to designing intelligent (managed) multiport repeaters. When the IMR2 device is combined with the Quad Integrated Ethernet Transceive...
Am79C982
The basic Integrated Multiport Repeater (bIMR™) chip is a VLSI circuit that provides a system-level solution to designing a compliant 802.3 repeater incorporating 10BASE-T transceivers. The device integrates the Repeater functions specified by Section ...
Am79C981
The Integrated Multiport Repeater Plus (IMR+) chip is a VLSI circuit that provides a system-level solution to designinga compliant 802.3 repeater incorporating 10BASE-T transceivers. The device integrates the Repeater functions specified by Section 9 of the ...
Am79C98
The Am79C98 Twisted-Pair Ethernet Transceiver (TPEX) is an integrated circuit that implements the medium attachment unit (MAU) functions for the twisted-pair medium, as specified by the IEEE 802.3 standard (Type 10BASE-T). This device provides the necessary ...
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